如何格式化名/姓的順序並刪除前綴和暱稱

Question

我需要檢索經理的層次結構，並且存儲給定人的經理姓名的列的格式如下Smith, Mr. William (Bill)。我想這個輸出只是William Smith。到目前爲止，我已經把這個一起：

SELECT DISTINCT RIGHT(u.manager, LEN(u.manager)-(1+CHARINDEX(', ', u.manager))) + ' ' + 
LEFT(u.manager, CHARINDEX(', ', u.manager) - 1) as ManagerName 
FROM Users u 

使用我上面的例子查詢目前的結果是Mr. William (Bill) Smith。這個CHARINDEX和SUBSTRING的東西總是給我很多麻煩，所以我不確定最簡單的方法是什麼。這也是一次性的，所以我不確定一個函數在這裏會有用。

Answer 1

DEMO

SELECT 
    SUBSTRING(manager,0,CHARINDEX(',', manager)) as surname, 
    SUBSTRING(manager,CHARINDEX('. ', manager)+2, LEN(manager)-CHARINDEX(' (', manager)+1) as name, 
    CONCAT(SUBSTRING(manager,CHARINDEX('. ', manager)+2, LEN(manager)-CHARINDEX(' (', manager)+1), 
     ' ', 
      SUBSTRING(manager,0,CHARINDEX(',', manager))) as 'name surname' 
FROM 
    Users 

結果：

+-------------+-----------+--------------+ 
| surname | name | name surname | 
+-------------+-----------+--------------+ 
    Smith  William William Smith 

Answer 2

SELECT RIGHT(NameStripped, LEN(NameStripped) - (1 + CHARINDEX(', ', NameStripped))) + ' ' + LEFT(NameStripped, CHARINDEX(', ', NameStripped) - 1) AS ManagerName --Your original code 
FROM (
    SELECT replace(replace(
      LEFT(u.manager, CHARINDEX('(', u.manager) - 2) --Get rid of nickname 
     , 'Mr. ', ''), 'Ms.', '') AS NameStripped --Get rid of Mr/Ms 
    from MyTable u) a 

這應該工作 - 我使用您發佈的代碼，但添加了一個子查詢來刪除暱稱和前綴。

請注意，如果a）您有更多的前綴選項（比如您可以添加額外的replace s）和/或b）並非數據庫中的每個人都有暱稱（在這種情況下你會想把這部分包裝在case語句中，很可能）。

Answer 3

我把您的查詢，修改一點點：

SELECT 
    ---this is the tricky part: inner part finds the first instance of '(' parenthesis 
    --and substract it from the length of the first name and get only the left part of the first name by subtracting it 
    CONCAT (
     LEFT(t.FirstName, LEN(t.FirstName) - (LEN(t.FirstName) - CHARINDEX('(', t.FirstName) + 1)) 
     ,t.LastName 
     ) 
FROM (
    --basically separating your above syntax to two columns 
    SELECT RIGHT('Smith, Mr. William (Bill)', LEN('Smith, Mr. William (Bill)') - CHARINDEX('.', 'Smith, Mr. William (Bill)') - 1) AS FirstName 
     ,LEFT('Smith, Mr. William (Bill)', CHARINDEX(', ', 'Smith, Mr. William (Bill)') - 1) AS LastName 
    ) t 

這裏是應該與表名和列運行查詢：

SELECT 
    ---Use case when statement to determine if there are any instances of '(' in the first name 
    CONCAT (
    CASE 
     WHEN CHARINDEX('(', t.FirstName) > 0 
      THEN LEFT(t.FirstName, LEN(t.FirstName) - (LEN(t.FirstName) - CHARINDEX('(', t.FirstName) + 1)) 
     ELSE t.FirstName + ' ' 
     END 
    ,t.LastName 
    ) 
FROM (
    SELECT 
    RIGHT(u.manager, LEN(u.manager) - CHARINDEX('.', u.manager) - 1) AS FirstName 
    ,LEFT(u.manager, CHARINDEX(', ', u.manager) - 1) AS LastName from Users u 
) t